Back best fob



April 9, 1929. Q E- PATTERSON 1,708,236

BACK REST FOR INVALID BEDS original Filed April 21. 192e 3 CCE/'.Faer'sonanwa Patented Apr. 9, 1929.

PATENT OFFICE.

CHARLES E. PATTERSON, OF JACKSONVILLE, ILLINOIS.

BACK REST FOR INVALID BEDS.

Original application iled April 21, 1926, Serial No. 103,542. Divided and this application led August This invention relates to invalid beds and more especially to a back rest or lift for use in connection therewith, one of the objects beingr to provide a structure of this character which is yieldingly supported and by the use of which a patient can be maintained comfortably in a sitting or reclining posture.

This application is more especially a division of an application filed by me on April 21st, 1926, Serial No. 103,542, and the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, itbeing understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed, without departing from the spirit of the invention.

In the accompanying drawings the preferred form of the invent-ion has been shown.

In said drawings,

Figure 1 is a plan View of a portion of a bed structure having the present improvements thereon.

Figure 2 is a side elevation thereof.

Figure 3 is a side elevation on an enlarged scale showing the yielding means employed for controlling the downward movement of the back rest.

Referring to the figures by characters of reference 18 designates a portion of a bed structure on which a patient is adapted to rest. Extending from the sides of this structure 18 are upstanding brackets 36 to which are pivotally connected heads 37 each of which has an arcuate flange 3S along the bottom thereof. An arcuate series of apen tures 39 provided in each head and any one of these apertures is adapted to receive a pin `l() extending inwardly from the bracket 3G, thus to hold the head against rotation about its pivot 41. A steel cable L12 is secured at one end to the forward portion of each of the arcuate flanges 38 and attached at its other end to a spring 43. This spring is adjustably connected by a turnbuckleflt or the like to the end portion 21 of the structure 18. This spring iii-obviously eX- erts a continuous pull through the steel cable 42 upon the arcuate portion 38 of the head 37. Consequently when a pin 40 is removed from each head 37, the said disks or disks or heads 37 are provided with sockets ture, the te Serial No. 129,828.

heads 37 will be rotated by the springs. These O in which are seated the lower ends of the sides of a frame 46 forming a part of a back rest. The sides of this frame are connected by an endless belt i7 which fits transversely around the frame. This belt can be easily slipped on or off of the frame as will be apparent by referring to Figure 2. Obviously when the pins 4i() arercmoved the frame will swing upwardly under the action of the springs i8 so as to afford a comfortable back rest which will adjust itself automatically to the patient. After the back resthas been brought to a desired position the pins i() can be inserted so as to prevent further movement. lVhen not in use the back rest can be swung downwardly between the sides of the structure 18 and lthere held bv inserting` the pins l0 in the proper apertures 39. By means of turnbuckles f4 the tension of the springs can be regulated.

lVhat is claimed is:

An invalid bed including a supporting structure, brackets lixedly connected to opposite sides of said structure, heads lai'ipiing the brackets, pivotal connections between the. heads and brackets, a socket portion radiating from each head, frame having .its sides insertible at one end into the socket portions, there being a series of apertures within each bracket and head, a` fasteninpr pin inserted into selected apertures to hold the heads against rotation relative to the brackets, an arcuate flange extendingl laterally from one of the heads, a spring, a flL :ible connect-ion between one endof the springr and rthat end of the flange remote from the spring, thereby to wind upon the flange when the frame pressed in one direction away from normal position and to unwind thi r ve the frame back to normal po, on whcil relieved from pressure, and adjustable means for anchoring the other end of the sprnig to the supportiig struc- Yon of the snri being such as to exert i constant pull upon the peripheral port ,.1 of the head thereby to yieldinglyv support the frame in an upstanding position.

In testimony that Ielaim the foregoing as ny own, I have hereto ai'IiXed my signature.

CHARLES n. PATTERSON. 

